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Vehicle Speed Sensor ByPass!
Updated: 02 APR 2002
Brought to you (in no particular order) by:
BOSS 3.0, SPORTboundRANGER, lowranger92 and the wizards at Ranger Forum 3.0L Board.
-I am providing this information for illustration and further understanding of the ECC-IV/V system only.
It is only intended for OFF-ROAD Vehicles who's performance is hampered by the speed governor.
(Your ¼ mile speeds won't pass 97, hurting your E.T., etc.)
-You (the vehicle owner/operator/mechanic) are solely responsible for any fines, damage, mayhem, destruction, arrests, convictions, loss or liability incurred through this modification.
-Never exceed the speed rating of your properly inflated/maintained tires.
-You may void your vehicle warranty.
-You may hurt yourself or others.
Other Potential problems:
-Automatic transmissions lose shift reference and torque converter lock-up inputs. Shifts may be late, labored or rough in "VSS Off" Mode.
-Vehicles with the factory installed electric "Smart-Fan" have no speed inputs. The fan may run at all speeds in "VSS Off" Mode.
-Vehicles with an electric speedometer may lose speedometer function in "VSS Off" Mode.
-The "Check Engine Light (or MIL) my illuminate in "VSS Off" Mode. It will extinguish once VSS signals are sensed by the PCM.
-Automotive grade electrical wire, of the same gauge as the VSS+ line.
-Automotive grade electrical crimp connectors, suitable for the wire gauge used.
-OR: Soldering iron, solder and heat shrink.
-Quite frankly, if you can't figure it out from the drawing, you shouldn't be messing with it.
Sorry if that seems rude, but this is serious.
The possibilities are endless!:
-Install with a custom burned chip with No Rev-Limiter, and a 70 MPH Top Speed. Install a hidden (or key) switch for the speed, gives a "protected valet" feature. Great if the kids want to borrow the car!
-Nitrous Arm switch (2P/2T) connected with this (Nitrous Arm = No VSS)
-Connect to a relay and use with the TPS (Voltage >4 = No VSS)
-Connect to the WOT Relay (WOT = No VSS)
WebTV Users-Click the speaker. For PC users, I added a control bar.
(I know some of these songs can get annoying!)
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